Posting this problem here and hoping for a solution from the experts in this forum.

When i have restarted the Analysis Services , i see that it has been stopped but never started back. It fails with an error

"The SQL Server Analysis Services (MSSQLSERVER) service on Local Computer started and then stopped. Some services stop automatically if they are not in use by other services or programs."

When Checked the Event Viewer i see the following error -

The service cannot be started: The following system error occurred: The filename, directory name, or volume label syntax is incorrect. File system error: Error occurred during the creation of directory: '\\?\E:\OLAP\MSSOLAPFactory\OlapData;M:\Test Backup'.

I remember changing the BackupDir value of Analysis Services few days back, and i think it could have impacted. Can you please help me how can i change back the BackupDir value and have the server back?